成人免费xx,国产又黄又湿又刺激不卡网站,成人性视频app菠萝网站,色天天天天

Welcome to chemicalbook!
Chinese English Japanese Germany Korea
400-158-6606
Try our best to find the right business for you.
Do not miss inquiry messages Please log in to view all inquiry messages.

Welcome back!

ChemicalBook CAS DataBase List METHYL 2-AMINO-5-CHLORO-3-NITROBENZOATE
84228-49-9

METHYL 2-AMINO-5-CHLORO-3-NITROBENZOATE synthesis

6synthesis methods
-

Yield:84228-49-9 61%

Reaction Conditions:

with thionyl chloride at 0 - 80; for 12 h;

Steps:

21.4 Step 4. Methyl 2-amino-5-chloro-3-nitrobenzoate.

Step 4. Methyl 2-amino-5-chloro-3-nitrobenzoate. To a solution of 2-amino-5-chloro-3-nitrobenzoic acid (0.645 g, 3 mmol) in MeOH (10 mL) 0°C was added SOCl2 (0.7 g, 6 mmol). The mixture reaction was stirred at 80°C for 12 nr, then cooled to r.t. and concentrated under reduced pressure. The residue was purified by column chromatography to give methyl 2-amino-5-chloro-3-nitrobenzoate (420 mg, 61% yield). LC-MS: m/z 231(M+H)+.

References:

WO2014/176258,2014,A1 Location in patent:Page/Page column 67